Apple iOS/iPadOS/macOS/tvOS/visionOS/watchOS prior 26.6/15.7.8/14.8.8 memory corruption

| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 5.3 | $5k-$25k | 1.41 |
Summary
A vulnerability classified as critical was found in Apple iOS, iPadOS, macOS, tvOS, visionOS and watchOS. Affected by this vulnerability is an unknown functionality. Such manipulation leads to memory corruption. This vulnerability is listed as CVE-2026-64775. The attack must be carried out locally. There is no available exploit.
Details
A vulnerability was found in Apple iOS, iPadOS, macOS, tvOS, visionOS and watchOS. It has been rated as critical. Affected by this issue is an unknown function. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is availability. CVE summarizes:
A memory initialization issue was addressed with improved memory handling. This issue is fixed in iOS 26.6 and iPadOS 26.6, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, watchOS 26.6. An app may be able to cause unexpected system termination.
The advisory is shared for download at support.apple.com. This vulnerability is handled as CVE-2026-64775 since 07/20/2026. The exploitation is known to be easy. The attack needs to be approached locally. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 07/28/2026).
Upgrading to version 26.6, 15.7.8 or 14.8.8 eliminates this vulnerability.
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Product
Type
Vendor
Name
License
Website
- Vendor: https://www.apple.com/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔒VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 5.5VulDB Meta Temp Score: 5.3
VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔒
VulDB Reliability: 🔍
CVSSv2
| AV | AC | Au | C | I | A |
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| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
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| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Exploiting
Class: Memory corruptionCWE: CWE-119
CAPEC: 🔒
ATT&CK: 🔒
Physical: Partially
Local: Yes
Remote: No
Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒
| 0-Day | Unlock | Unlock | Unlock | Unlock |
|---|---|---|---|---|
| Today | Unlock | Unlock | Unlock | Unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔒
Upgrade: iOS/iPadOS/macOS/tvOS/visionOS/watchOS 26.6/15.7.8/14.8.8
Timeline
07/20/2026 CVE reserved07/28/2026 Advisory disclosed
07/28/2026 VulDB entry created
07/28/2026 VulDB entry last update
Sources
Vendor: apple.comAdvisory: support.apple.com
Status: Confirmed
CVE: CVE-2026-64775 (🔒)
GCVE (CVE): GCVE-0-2026-64775
GCVE (VulDB): GCVE-100-383768
scip Labs: https://www.scip.ch/en/?labs.20180712
Entry
Created: 07/28/2026 02:11Changes: 07/28/2026 02:11 (54)
Complete: 🔍
Cache ID: 216::103
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